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{
"id": "CVE-2024-49864",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-10-21T18:15:06.203",
"lastModified": "2024-11-13T14:23:48.437",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix a race between socket set up and I/O thread creation\n\nIn rxrpc_open_socket(), it sets up the socket and then sets up the I/O\nthread that will handle it. This is a problem, however, as there's a gap\nbetween the two phases in which a packet may come into rxrpc_encap_rcv()\nfrom the UDP packet but we oops when trying to wake the not-yet created I/O\nthread.\n\nAs a quick fix, just make rxrpc_encap_rcv() discard the packet if there's\nno I/O thread yet.\n\nA better, but more intrusive fix would perhaps be to rearrange things such\nthat the socket creation is done by the I/O thread."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rxrpc: Corrige una ejecuci\u00f3n entre la configuraci\u00f3n del socket y la creaci\u00f3n del hilo de E/S En rxrpc_open_socket(), configura el socket y luego configura el hilo de E/S que lo manejar\u00e1. Sin embargo, esto es un problema, ya que hay una brecha entre las dos fases en las que un paquete puede llegar a rxrpc_encap_rcv() desde el paquete UDP, pero fallo al intentar despertar el hilo de E/S a\u00fan no creado. Como soluci\u00f3n r\u00e1pida, simplemente haga que rxrpc_encap_rcv() descarte el paquete si a\u00fan no hay un hilo de E/S. Una soluci\u00f3n mejor, pero m\u00e1s intrusiva, tal vez ser\u00eda reorganizar las cosas de modo que la creaci\u00f3n del socket la realice el hilo de E/S."
}
],
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"source": "nvd@nist.gov",
"type": "Primary",
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"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "HIGH",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6
}
]
},
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"source": "nvd@nist.gov",
"type": "Primary",
"description": [
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"lang": "en",
"value": "CWE-362"
}
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